Frankie Muniz Suffered His Second Mini-Stroke

On Monday, Frankie Muniz tweeted that, almost a year to that day, he suffered another mini-stroke. He didn’t provide any more details but he described the first one as “not fun at all.”

The former Malcolm in the Middle star was hospitalized last year for a “mini-stroke” – a commonly used term to describe a transient ischemic attack, or TIA, when blood temporarily stops reaching the brain – an experience he described on Twitter as “not fun at all.”

“I felt like I was getting stabbed in the head – the worst headache you could ever think of. I couldn’t see anything,” he exclusively told PEOPLE.com last year shortly after the first episode.

Muniz says he was speaking gibberish and his hands were numb during his first mini-stroke. Muniz attributes the stroke to working too hard.

“My biggest problem is I always want to be working, going non-stop,” he said. “So it’s a wakeup call to take a little time and relax a bit.”